No, plutonium is used more. Uranium can only be used in gun type nuclear weapons, which are rarely used.
Both basically are the same, they can be fission or fusion bombs like Uranium,Plutonium and Hydrogen bombs. A general description would be that atomic bombs are fission bombs. Nuclear bombs are fusion bombs. Fusion bombs are more powerful weight for weight
Uranium is used in atomic bombs - bombs with uranium 235 (enriched more than 20%, with 92% or 93% being typical weapons grade uranium, also called orealloy for Oak Ridge Alloy).
Uranium and plutonium are very heavy metals belonging to the element category actinide encompassing the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. Three uranium isotopes occur in nature versus only trace amounts of one isotope of plutonium. Of course the nuclear, chemical, physical and toxicological properties of uranium and plutonium are very different.
A MK-I uranium gun bomb, codenamed Little BoyA MK-III plutonium implosion bomb, codenamed Fat Man21 more implosion bombs were scheduled for production and delivery in 1945 had Japan not surrendered.
Well the only two worth remembering are the atomic bombs Fatman and Littleboy. Each bomb was dropped in Japan which hit Nagasaki and Hiroshima. Each bomb killed hundreds of thousands of Japanese citizens and soldiers. Japan shortly surrendered after that.
Fission bombs. They use one or more of 3 fuels: Uranium-233, Uranium-235, or Plutonium-239.
Are you asking "Who found the first atomic bomb just lying there and ready to use?". If you are, the answer is nobody, you don't find atomic bombs. Atomic bombs were invented, designed, then built.Leo Szilard in London invented the atomic bomb in 1933. But nobody could build it as no material was known that would support a neutron chain reaction.Otto Hahn in Berlin discovered that the rare isotope Uranium-235 would fission and release neutrons in 1938. Uranium-235 should support a neutron chain reaction, making Szilard's atomic bomb possible to build.E. O. Lawrence in Berkley discovered Plutonium in 1940 using his 36 inch cyclotron. Plutonium too fissioned and released neutrons, making it a second candidate for building an atomic bomb.The scientists & engineers of the Manhattan Project at Los Alamos designed a Uranium & a Plutonium based bomb between 1943 & 1945.The US government built the complex nuclear industrial infrastructure needed to produce Uranium-235 & Plutonium metals in quantity and machine them to the desired shapes between 1943 & 1945.The scientists & engineers at Los Alamos began building actual atomic bombs in June/July of 1945 when "oralloy" & "product" (codenames for Uranium-235 & Plutonium respectively) began to be available in the required quantities.The first bomb was tested July 16, 1945.The second bomb was the first used in combat August 6, 1945.The third bomb was the second and last used in combatAugust 9, 1945.The fourth bomb was built and was scheduled for use in combat late in August 1945. It was not needed and was returned to Los Alamos.Three more atomic bombs were scheduled to be built and used in combat in September 1945.Three more atomic bombs were scheduled to be built and used in combat in October 1945.Seven more atomic bombs were scheduled to be built and used in combat in November 1945.Seven more atomic bombs were scheduled to be built and used in combat in December 1945.
In general, a fusion bomb (hydrogen bomb) is more powerful than a fission (atomic) bomb. Fusion bombs use an atomic bomb to begin the fusion reaction.
Plutonium has the same composition as uranium, except for the fact that it contains one more neutron and one more proton. Actually Plutonium-239 has 2 more protons and 2 more neutrons than Uranium-235.
None. The first atomic bomb was made with enriched uranium. Note: There is a "slight technicality" with this one. Here's the deal. Any time that a small quantity (or a slightly larger quantity) of uranium is found, either in nature or in the physics lab, there will be a tiny bit of plutonium in the sample. Only the tiniest bit, but it will be there. Uranium's isotopes are all unstable, and they will decay by spontaneous fission or alpha emission. Within that decay environment, a few atoms of uranium are transformed into atoms of plutonium. As stated, it's a "technicality" as such, but it's a fact.
The Pauling electronegativity of uranium is 1,38; the Pauling electronegativity of plutonium is 1,28.So, plutonium is a bit more chemically reactive than uranium.
Plutonium is the preferred fuel for nuclear bombs due to its greater efficiency in sustaining a nuclear chain reaction compared to uranium. Its higher fissionability and smaller critical mass make it the more suitable choice for achieving the explosive yield required in nuclear weapons.